would you guys give me some opinion on what kind of approach should I choose in building sms gateway apps.

The questions is...

Which one is more efficient in term of memory usages & speed:

A. Multiple Jars, that only holds about 1-2 classes each, running at the same time OR
B. One single Jars, that holds all the classes

The A (multiple jars) was actually a splitted version of B (single jar)

NB: My friend using a Multiple Jars approach, while others using single Jars. I can't directly compare those two appz since it quite different in structures, altough it has the same functionality as sms gateway.

Thx in advance